A) 50 B) 23 C) 60 D) 51
A) 1 B) 7 C) 17 D) 3
A) 45 B) 9 C) 103 D) 5
A) 4 B) 33 C) 15 D) 3
A) Alkaline Earth Metals B) Alkali Metals C) Halogens D) Transition Metals E) Noble Gases
A) 14 B) 2 C) 14.007 D) 7
A) 56 B) 137 C) 6 D) 2
A) 7 B) 2 C) 1 D) 6
A) Phosphorus is a non-metal gas. B) Chlorine is a liquid non-metal. C) Tellurium is a solid metalloid. D) Mercury is a solid metal.
A) 96 B) 5 C) 6 D) 42
A) 7 B) 2 C) 3 D) 4
A) proton/+, electron/neutral, neutron/- B) proton/+, electron/-, neutron/uncharged C) proton/-, electron/+, neutron/no charge D) proton/+, neutron/-, electron/no charge
A) neutrons and electrons B) protons and neutrons C) protons and orbits D) protons and electrons
A) Carbon and Boron B) Argon and Krypton C) Phosphorus and Silicon D) Mercury and Thallium
A) the atom is a positively charged sphere with electrons embedded in it B) the atom is mostly empty space C) atoms are tiny solid spheres D) electrons orbit totally randomly around the nucleus
A) group B) nucleus C) period D) region
A) Beryllium B) Magnesium C) Lithium D) Chlorine
A) number of protons B) period number C) group number D) number of neutrons
A) the same as the number of energy levels B) the same as the number of electrons C) greater than the mass number D) the mass number minus the atomic number
A) Number of Neutrons B) State of Matter C) Group Number D) Period Number
A) Manganese B) Francium C) Carbon D) Nitrogen
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) by losing protons B) By adding or losing electrons C) by adding protons D) by adding electrons
A) by adding protons B) by losing electrons C) by adding electrons D) by losing protons
A) by adding electrons B) by losing electrons C) by adding protons D) by losing protons
A) by adding or losing neutrons B) by adding protons C) by adding electrons D) by adding neutrons
A) difference between the atomic and mass number B) same as the mass number C) same as the atomic number D) mass number divided by 2
A) the difference between the mass and atomic number B) the same as the atomic number C) the same as the number of neutrons D) the same as the mass number
A) Hg and C B) Mg and F C) B and O D) Na and Li
A) Ba and Ra B) Mg and Cl C) Li and Po D) F and At
A) The alkali metals B) The halogens C) The transition metals D) The noble gases E) The alkali earth metals
A) The noble gases B) The transition metals C) The halogens D) The alkali metals
A) 4 B) 1 C) 17 D) 8 E) 18
A) how many protons there are B) how many electrons there are C) how many electron levels there are D) how reactive they are
A) the number of protons B) how many valence electrons the atom has C) how many electrons the atom has D) the number of neutrons
A) Silver B) Mercury C) Iron D) Sodium E) Fluorine
A) Au B) Li C) Al D) H E) F
A) Mg B) Al C) Cs D) I E) Li
A) the number of neutrons B) the number of protons C) the number of electrons
A) Newton B) Mendeleev C) Dalton D) Bohr E) Lewis |